They should hire the 'Flying Scotsman' in the UK...........it's an early/historic train and would be REALLY AUTHENTIC............. if her restoration is completed by then she'd be a HUGE publicity draw....

i've done Europe heaps of times.........i've done tens of thousands of miles in trains.......after 72 hours in a train, your inner ear adopts the motion even on still land........lol....it's freaky...........lol.........i'd love to do the USA but i'm holding out for the Orient Express or the Trans Siberian Express.............
ps. i'm not one of those train spotter types btw.........lol......you get cheap railcards here.............